11722151572 has 24 divisors (see below), whose sum is σ = 21409549056. Its totient is φ = 5605230048.

The previous prime is 11722151569. The next prime is 11722151579. The reversal of 11722151572 is 27515122711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11722151579) 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, 830478 + ... + 844474.

It is an arithmetic number, because the mean of its divisors is an integer number (892064544).

Almost surely, 2^11722151572 is an apocalyptic number.

It is an amenable number.

11722151572 is a deficient number, since it is larger than the sum of its proper divisors (9687397484).

11722151572 is a wasteful number, since it uses less digits than its factorization.

11722151572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23127 (or 23125 counting only the distinct ones).

The product of its digits is 9800, while the sum is 34.

The spelling of 11722151572 in words is "eleven billion, seven hundred twenty-two million, one hundred fifty-one thousand, five hundred seventy-two".