11699249220 has 72 divisors (see below), whose sum is σ = 36017427264. Its totient is φ = 3073232448.

The previous prime is 11699249189. The next prime is 11699249267. The reversal of 11699249220 is 2294299611.

11699249220 is a `hidden beast` number, since 11 + 69 + 92 + 492 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 472984 + ... + 497103.

Almost surely, 2^11699249220 is an apocalyptic number.

11699249220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11699249220 is an abundant number, since it is smaller than the sum of its proper divisors (24318178044).

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

11699249220 is a wasteful number, since it uses less digits than its factorization.

11699249220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970169 (or 970164 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 11699249220 in words is "eleven billion, six hundred ninety-nine million, two hundred forty-nine thousand, two hundred twenty".