65642373740 has 24 divisors (see below), whose sum is σ = 137944840320. Its totient is φ = 26238691328.

The previous prime is 65642373721. The next prime is 65642373761. The reversal of 65642373740 is 4737324656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111637 + ... + 1169196.

It is an arithmetic number, because the mean of its divisors is an integer number (5747701680).

Almost surely, 2^65642373740 is an apocalyptic number.

It is an amenable number.

65642373740 is an abundant number, since it is smaller than the sum of its proper divisors (72302466580).

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

65642373740 is a wasteful number, since it uses less digits than its factorization.

65642373740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282281 (or 2282279 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 47.

The spelling of 65642373740 in words is "sixty-five billion, six hundred forty-two million, three hundred seventy-three thousand, seven hundred forty".