402666162544 has 40 divisors (see below), whose sum is σ = 788339418048. Its totient is φ = 199224422400.

The previous prime is 402666162533. The next prime is 402666162553. The reversal of 402666162544 is 445261666204.

It is a happy number.

It is a super-2 number, since 2×402666162544² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402666162494 and 402666162503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11229444 + ... + 11265244.

Almost surely, 2^402666162544 is an apocalyptic number.

It is an amenable number.

402666162544 is a deficient number, since it is larger than the sum of its proper divisors (385673255504).

402666162544 is a wasteful number, since it uses less digits than its factorization.

402666162544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43153 (or 43147 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 402666162544 in words is "four hundred two billion, six hundred sixty-six million, one hundred sixty-two thousand, five hundred forty-four".