70744661664 has 48 divisors (see below), whose sum is σ = 185980842432. Its totient is φ = 23546492928.

The previous prime is 70744661653. The next prime is 70744661699. The reversal of 70744661664 is 46616644707.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482884 + ... + 612099.

It is an arithmetic number, because the mean of its divisors is an integer number (3874600884).

Almost surely, 2^70744661664 is an apocalyptic number.

It is an amenable number.

70744661664 is an abundant number, since it is smaller than the sum of its proper divisors (115236180768).

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

70744661664 is a wasteful number, since it uses less digits than its factorization.

70744661664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095669 (or 1095661 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 70744661664 in words is "seventy billion, seven hundred forty-four million, six hundred sixty-one thousand, six hundred sixty-four".