11990709225 has 72 divisors (see below), whose sum is σ = 23600801952. Its totient is φ = 5771078400.

The previous prime is 11990709149. The next prime is 11990709233. The reversal of 11990709225 is 52290709911.

It is not a de Polignac number, because 11990709225 - 2⁸ = 11990708969 is a prime.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 321394 + ... + 356756.

It is an arithmetic number, because the mean of its divisors is an integer number (327788916).

Almost surely, 2^11990709225 is an apocalyptic number.

11990709225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11990709225 is a deficient number, since it is larger than the sum of its proper divisors (11610092727).

11990709225 is a wasteful number, since it uses less digits than its factorization.

11990709225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35527 (or 35519 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The spelling of 11990709225 in words is "eleven billion, nine hundred ninety million, seven hundred nine thousand, two hundred twenty-five".