401706665496 has 64 divisors (see below), whose sum is σ = 1115903599200. Its totient is φ = 133896011904.

The previous prime is 401706665473. The next prime is 401706665497. The reversal of 401706665496 is 694566607104.

It is a super-2 number, since 2×401706665496² (a number of 24 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401706665497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9269190 + ... + 9312426.

Almost surely, 2^401706665496 is an apocalyptic number.

It is an amenable number.

401706665496 is an abundant number, since it is smaller than the sum of its proper divisors (714196933704).

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

401706665496 is a wasteful number, since it uses less digits than its factorization.

401706665496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86265 (or 86255 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 401706665496 in words is "four hundred one billion, seven hundred six million, six hundred sixty-five thousand, four hundred ninety-six".