11415600551 has 4 divisors (see below), whose sum is σ = 11440363704. Its totient is φ = 11390837400.

The previous prime is 11415600533. The next prime is 11415600587. The reversal of 11415600551 is 15500651411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11415600551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11415609551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12380885 + ... + 12381806.

It is an arithmetic number, because the mean of its divisors is an integer number (2860090926).

Almost surely, 2^11415600551 is an apocalyptic number.

11415600551 is a deficient number, since it is larger than the sum of its proper divisors (24763153).

11415600551 is an equidigital number, since it uses as much as digits as its factorization.

11415600551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24763152.

The product of its (nonzero) digits is 3000, while the sum is 29.

The spelling of 11415600551 in words is "eleven billion, four hundred fifteen million, six hundred thousand, five hundred fifty-one".