70721956096 has 81 divisors (see below), whose sum is σ = 155270512579. Its totient is φ = 32125068800.

The previous prime is 70721956093. The next prime is 70721956121. The reversal of 70721956096 is 69065912707.

It is a happy number.

The square root of 70721956096 is 265936.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×70721956096² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70721956091) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 46803981 + ... + 46805491.

Almost surely, 2^70721956096 is an apocalyptic number.

70721956096 is the 265936-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70721956096

70721956096 is an abundant number, since it is smaller than the sum of its proper divisors (84548556483).

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

70721956096 is an frugal number, since it uses more digits than its factorization.

70721956096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060 (or 1524 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 52.

The spelling of 70721956096 in words is "seventy billion, seven hundred twenty-one million, nine hundred fifty-six thousand, ninety-six".