70216131568 has 240 divisors, whose sum is σ = 162070182400. Its totient is φ = 29355955200.

The previous prime is 70216131553. The next prime is 70216131571. The reversal of 70216131568 is 86513161207.

It is a happy number.

It is a super-2 number, since 2×70216131568² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70216131568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 212133163 + ... + 212133493.

Almost surely, 2^70216131568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70216131568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81035091200).

70216131568 is an abundant number, since it is smaller than the sum of its proper divisors (91854050832).

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

70216131568 is a wasteful number, since it uses less digits than its factorization.

70216131568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 70216131568 in words is "seventy billion, two hundred sixteen million, one hundred thirty-one thousand, five hundred sixty-eight".