1651980324960 has 768 divisors, whose sum is σ = 6926792785920. Its totient is φ = 359524915200.

The previous prime is 1651980324949. The next prime is 1651980324971. The reversal of 1651980324960 is 694230891561.

1651980324960 is a `hidden beast` number, since 1 + 6 + 519 + 8 + 0 + 32 + 4 + 96 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1651980324949) and next prime (1651980324971).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1651980324897 and 1651980324906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 155095635 + ... + 155106285.

It is an arithmetic number, because the mean of its divisors is an integer number (9019261440).

Almost surely, 2^{1651980324960} is an apocalyptic number.

1651980324960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1651980324960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3463396392960).

1651980324960 is an abundant number, since it is smaller than the sum of its proper divisors (5274812460960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1651980324960 is a wasteful number, since it uses less digits than its factorization.

1651980324960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10928 (or 10914 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 1651980324960 in words is "one trillion, six hundred fifty-one billion, nine hundred eighty million, three hundred twenty-four thousand, nine hundred sixty".