401865266610 has 96 divisors (see below), whose sum is σ = 1106588349360. Its totient is φ = 100835057664.

The previous prime is 401865266603. The next prime is 401865266641. The reversal of 401865266610 is 16662568104.

It can be written as a sum of positive squares in 8 ways, for example, as 277970418441 + 123894848169 = 527229^2 + 351987^2 .

It is a super-2 number, since 2×401865266610² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 6506956 + ... + 6568424.

Almost surely, 2^401865266610 is an apocalyptic number.

401865266610 is an abundant number, since it is smaller than the sum of its proper divisors (704723082750).

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

401865266610 is a wasteful number, since it uses less digits than its factorization.

401865266610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65772 (or 65769 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 401865266610 in words is "four hundred one billion, eight hundred sixty-five million, two hundred sixty-six thousand, six hundred ten".