11651565070 has 16 divisors (see below), whose sum is σ = 20981467008. Its totient is φ = 4658703840.

The previous prime is 11651565059. The next prime is 11651565071. The reversal of 11651565070 is 7056515611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11651565071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214686 + ... + 263425.

It is an arithmetic number, because the mean of its divisors is an integer number (1311341688).

Almost surely, 2^11651565070 is an apocalyptic number.

11651565070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11651565070 is a deficient number, since it is larger than the sum of its proper divisors (9329901938).

11651565070 is a wasteful number, since it uses less digits than its factorization.

11651565070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480555.

The product of its (nonzero) digits is 31500, while the sum is 37.

The spelling of 11651565070 in words is "eleven billion, six hundred fifty-one million, five hundred sixty-five thousand, seventy".