140646466564 has 12 divisors (see below), whose sum is σ = 251368153344. Its totient is φ = 68826994184.

The previous prime is 140646466547. The next prime is 140646466567. The reversal of 140646466564 is 465664646041.

It is not an unprimeable number, because it can be changed into a prime (140646466567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374059564 + ... + 374059939.

It is an arithmetic number, because the mean of its divisors is an integer number (20947346112).

Almost surely, 2^140646466564 is an apocalyptic number.

It is an amenable number.

140646466564 is a deficient number, since it is larger than the sum of its proper divisors (110721686780).

140646466564 is a wasteful number, since it uses less digits than its factorization.

140646466564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748119554 (or 748119552 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 52.

The spelling of 140646466564 in words is "one hundred forty billion, six hundred forty-six million, four hundred sixty-six thousand, five hundred sixty-four".