64570080 has 192 divisors, whose sum is σ = 221755968. Its totient is φ = 15728640.

The previous prime is 64570067. The next prime is 64570091. The reversal of 64570080 is 8007546.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a nialpdrome in base 3.

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, 334464 + ... + 334656.

It is an arithmetic number, because the mean of its divisors is an integer number (1154979).

Almost surely, 2^64570080 is an apocalyptic number.

64570080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64570080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110877984).

64570080 is an abundant number, since it is smaller than the sum of its proper divisors (157185888).

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

64570080 is a wasteful number, since it uses less digits than its factorization.

64570080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 64570080 is about 8035.5510078650. The cubic root of 64570080 is about 401.1841576341.

The spelling of 64570080 in words is "sixty-four million, five hundred seventy thousand, eighty".