11551050551651 has 4 divisors (see below), whose sum is σ = 12439592901792. Its totient is φ = 10662508201512.

The previous prime is 11551050551591. The next prime is 11551050551657. The reversal of 11551050551651 is 15615505015511.

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

It is a cyclic number.

It is not a de Polignac number, because 11551050551651 - 2⁶ = 11551050551587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11551050551599 and 11551050551608.

It is not an unprimeable number, because it can be changed into a prime (11551050551657) 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, 444271175051 + ... + 444271175076.

It is an arithmetic number, because the mean of its divisors is an integer number (3109898225448).

Almost surely, 2^{11551050551651} is an apocalyptic number.

11551050551651 is a deficient number, since it is larger than the sum of its proper divisors (888542350141).

11551050551651 is an equidigital number, since it uses as much as digits as its factorization.

11551050551651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888542350140.

The product of its (nonzero) digits is 93750, while the sum is 41.

The spelling of 11551050551651 in words is "eleven trillion, five hundred fifty-one billion, fifty million, five hundred fifty-one thousand, six hundred fifty-one".