1651021532160 has 1408 divisors, whose sum is σ = 7143704838144. Its totient is φ = 314293616640.

The previous prime is 1651021532119. The next prime is 1651021532183. The reversal of 1651021532160 is 612351201561.

It is a tau number, because it is divible by the number of its divisors (1408).

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 2567684799 + ... + 2567685441.

Almost surely, 2^{1651021532160} is an apocalyptic number.

1651021532160 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 1651021532160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3571852419072).

1651021532160 is an abundant number, since it is smaller than the sum of its proper divisors (5492683305984).

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

1651021532160 is a wasteful number, since it uses less digits than its factorization.

1651021532160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 851 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 1651021532160 in words is "one trillion, six hundred fifty-one billion, twenty-one million, five hundred thirty-two thousand, one hundred sixty".