70751664 has 80 divisors (see below), whose sum is σ = 204352000. Its totient is φ = 23436864.

The previous prime is 70751651. The next prime is 70751669. The reversal of 70751664 is 46615707.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (70751669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85557 + ... + 86379.

It is an arithmetic number, because the mean of its divisors is an integer number (2554400).

Almost surely, 2^70751664 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 70751664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102176000).

70751664 is an abundant number, since it is smaller than the sum of its proper divisors (133600336).

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

70751664 is a wasteful number, since it uses less digits than its factorization.

70751664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 70751664 is about 8411.4008345816. The cubic root of 70751664 is about 413.5984343978.

The spelling of 70751664 in words is "seventy million, seven hundred fifty-one thousand, six hundred sixty-four".