40664640263154 has 64 divisors (see below), whose sum is σ = 86314468147200. Its totient is φ = 12752362445760.

The previous prime is 40664640263153. The next prime is 40664640263281. The reversal of 40664640263154 is 45136204646604.

It is a super-2 number, since 2×40664640263154² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40664640263097 and 40664640263106.

It is not an unprimeable number, because it can be changed into a prime (40664640263153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14306974 + ... + 16912089.

It is an arithmetic number, because the mean of its divisors is an integer number (1348663564800).

Almost surely, 2^{40664640263154} is an apocalyptic number.

40664640263154 is an abundant number, since it is smaller than the sum of its proper divisors (45649827884046).

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

40664640263154 is a wasteful number, since it uses less digits than its factorization.

40664640263154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31219295.

The product of its (nonzero) digits is 9953280, while the sum is 51.

The spelling of 40664640263154 in words is "forty trillion, six hundred sixty-four billion, six hundred forty million, two hundred sixty-three thousand, one hundred fifty-four".