40040166572 has 48 divisors (see below), whose sum is σ = 89253642240. Its totient is φ = 15300617472.

The previous prime is 40040166557. The next prime is 40040166577. The reversal of 40040166572 is 27566104004.

It is a super-2 number, since 2×40040166572² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40040166577) 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, 2204588 + ... + 2222675.

It is an arithmetic number, because the mean of its divisors is an integer number (1859450880).

Almost surely, 2^40040166572 is an apocalyptic number.

It is an amenable number.

40040166572 is an abundant number, since it is smaller than the sum of its proper divisors (49213475668).

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

40040166572 is a wasteful number, since it uses less digits than its factorization.

40040166572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4427310 (or 4427308 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 40040166572 in words is "forty billion, forty million, one hundred sixty-six thousand, five hundred seventy-two".