351782148656 has 20 divisors (see below), whose sum is σ = 721670731992. Its totient is φ = 165544540416.

The previous prime is 351782148631. The next prime is 351782148661. The reversal of 351782148656 is 656841287153.

It is a super-2 number, since 2×351782148656² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646658090 + ... + 646658633.

Almost surely, 2^351782148656 is an apocalyptic number.

It is an amenable number.

351782148656 is an abundant number, since it is smaller than the sum of its proper divisors (369888583336).

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

351782148656 is a wasteful number, since it uses less digits than its factorization.

351782148656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293316748 (or 1293316742 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 56.

The spelling of 351782148656 in words is "three hundred fifty-one billion, seven hundred eighty-two million, one hundred forty-eight thousand, six hundred fifty-six".