40401502665265 has 16 divisors (see below), whose sum is σ = 55415383256448. Its totient is φ = 27700083455616.

The previous prime is 40401502665241. The next prime is 40401502665373. The reversal of 40401502665265 is 56256620510404.

It is a cyclic number.

It is not a de Polignac number, because 40401502665265 - 2⁵ = 40401502665233 is a prime.

It is a super-2 number, since 2×40401502665265² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78993252 + ... + 79503061.

It is an arithmetic number, because the mean of its divisors is an integer number (3463461453528).

Almost surely, 2^{40401502665265} is an apocalyptic number.

It is an amenable number.

40401502665265 is a deficient number, since it is larger than the sum of its proper divisors (15013880591183).

40401502665265 is a wasteful number, since it uses less digits than its factorization.

40401502665265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158503608.

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 40401502665265 in words is "forty trillion, four hundred one billion, five hundred two million, six hundred sixty-five thousand, two hundred sixty-five".