15554120951 has 2 divisors, whose sum is σ = 15554120952. Its totient is φ = 15554120950.

The previous prime is 15554120927. The next prime is 15554120969. The reversal of 15554120951 is 15902145551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15554120951 - 2³⁰ = 14480379127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15554120851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7777060475 + 7777060476.

It is an arithmetic number, because the mean of its divisors is an integer number (7777060476).

Almost surely, 2^15554120951 is an apocalyptic number.

15554120951 is a deficient number, since it is larger than the sum of its proper divisors (1).

15554120951 is an equidigital number, since it uses as much as digits as its factorization.

15554120951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45000, while the sum is 38.

The spelling of 15554120951 in words is "fifteen billion, five hundred fifty-four million, one hundred twenty thousand, nine hundred fifty-one".