40377968164 has 6 divisors (see below), whose sum is σ = 70661444294. Its totient is φ = 20188984080.

The previous prime is 40377968153. The next prime is 40377968173. The reversal of 40377968164 is 46186977304.

40377968164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 36925465600 + 3452502564 = 192160^2 + 58758^2 .

It is a super-3 number, since 3×40377968164³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5047246017 + ... + 5047246024.

Almost surely, 2^40377968164 is an apocalyptic number.

It is an amenable number.

40377968164 is a deficient number, since it is larger than the sum of its proper divisors (30283476130).

40377968164 is a wasteful number, since it uses less digits than its factorization.

40377968164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10094492045 (or 10094492043 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 40377968164 in words is "forty billion, three hundred seventy-seven million, nine hundred sixty-eight thousand, one hundred sixty-four".