65113770 has 32 divisors (see below), whose sum is σ = 156989952. Its totient is φ = 17284032.

The previous prime is 65113751. The next prime is 65113799. The reversal of 65113770 is 7731156.

It is a super-2 number, since 2×65113770² = 8479606087225800, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1824 + ... + 11556.

It is an arithmetic number, because the mean of its divisors is an integer number (4905936).

Almost surely, 2^65113770 is an apocalyptic number.

65113770 is an abundant number, since it is smaller than the sum of its proper divisors (91876182).

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

65113770 is a wasteful number, since it uses less digits than its factorization.

65113770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9966.

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 65113770 is about 8069.3103794562. The cubic root of 65113770 is about 402.3070227015.

The spelling of 65113770 in words is "sixty-five million, one hundred thirteen thousand, seven hundred seventy".