70511491600 has 405 divisors, whose sum is σ = 200626915783. Its totient is φ = 23792384000.

The previous prime is 70511491571. The next prime is 70511491619. The reversal of 70511491600 is 619411507.

The square root of 70511491600 is 265540.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1649334544 + 68862157056 = 40612^2 + 262416^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 993119565 + ... + 993119635.

Almost surely, 2^70511491600 is an apocalyptic number.

70511491600 is the 265540-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70511491600

70511491600 is an abundant number, since it is smaller than the sum of its proper divisors (130115424183).

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

70511491600 is a wasteful number, since it uses less digits than its factorization.

70511491600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 34.

The spelling of 70511491600 in words is "seventy billion, five hundred eleven million, four hundred ninety-one thousand, six hundred".