11699021376 has 224 divisors, whose sum is σ = 41619098880. Its totient is φ = 3145900032.

The previous prime is 11699021357. The next prime is 11699021381. The reversal of 11699021376 is 67312099611.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×11699021376² (a number of 21 digits) contains 22 as substring.

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, 177186 + ... + 234078.

Almost surely, 2^11699021376 is an apocalyptic number.

11699021376 is a gapful number since it is divisible by the number (16) 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 11699021376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20809549440).

11699021376 is an abundant number, since it is smaller than the sum of its proper divisors (29920077504).

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

11699021376 is a wasteful number, since it uses less digits than its factorization.

11699021376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56938 (or 56922 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The spelling of 11699021376 in words is "eleven billion, six hundred ninety-nine million, twenty-one thousand, three hundred seventy-six".