1651222241460 has 144 divisors (see below), whose sum is σ = 5481503576640. Its totient is φ = 399017249280.

The previous prime is 1651222241423. The next prime is 1651222241483. The reversal of 1651222241460 is 641422221561.

1651222241460 is a `hidden beast` number, since 1 + 6 + 5 + 12 + 222 + 414 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 712450 + ... + 1951929.

It is an arithmetic number, because the mean of its divisors is an integer number (38065997060).

Almost surely, 2^{1651222241460} is an apocalyptic number.

1651222241460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1651222241460 is an abundant number, since it is smaller than the sum of its proper divisors (3830281335180).

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

1651222241460 is a wasteful number, since it uses less digits than its factorization.

1651222241460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664718 (or 2664713 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 1651222241460 in words is "one trillion, six hundred fifty-one billion, two hundred twenty-two million, two hundred forty-one thousand, four hundred sixty".