64169070 has 64 divisors (see below), whose sum is σ = 181702656. Its totient is φ = 14192640.

The previous prime is 64169047. The next prime is 64169087. The reversal of 64169070 is 7096146.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1582 + ... + 11438.

It is an arithmetic number, because the mean of its divisors is an integer number (2839104).

Almost surely, 2^64169070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64169070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90851328).

64169070 is an abundant number, since it is smaller than the sum of its proper divisors (117533586).

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

64169070 is a wasteful number, since it uses less digits than its factorization.

64169070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9905.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 64169070 is about 8010.5599055247. The cubic root of 64169070 is about 400.3519194576.

The spelling of 64169070 in words is "sixty-four million, one hundred sixty-nine thousand, seventy".