40064112564 has 48 divisors (see below), whose sum is σ = 109322239488. Its totient is φ = 11180681568.

The previous prime is 40064112523. The next prime is 40064112577. The reversal of 40064112564 is 46521146004.

It is a congruent 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, 5542362 + ... + 5549585.

It is an arithmetic number, because the mean of its divisors is an integer number (2277546656).

Almost surely, 2^40064112564 is an apocalyptic number.

It is an amenable number.

40064112564 is an abundant number, since it is smaller than the sum of its proper divisors (69258126924).

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

40064112564 is a wasteful number, since it uses less digits than its factorization.

40064112564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11092004 (or 11092002 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 40064112564 its reverse (46521146004), we get a palindrome (86585258568).

It can be divided in two parts, 40064112 and 564, that added together give a triangular number (40064676 = T₈₉₅₁).

The spelling of 40064112564 in words is "forty billion, sixty-four million, one hundred twelve thousand, five hundred sixty-four".