155556751451 has 2 divisors, whose sum is σ = 155556751452. Its totient is φ = 155556751450.

The previous prime is 155556751429. The next prime is 155556751457. The reversal of 155556751451 is 154157655551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155556751451 - 2¹⁸ = 155556489307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155556751451.

It is not a weakly prime, because it can be changed into another prime (155556751457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77778375725 + 77778375726.

It is an arithmetic number, because the mean of its divisors is an integer number (77778375726).

Almost surely, 2^155556751451 is an apocalyptic number.

155556751451 is a deficient number, since it is larger than the sum of its proper divisors (1).

155556751451 is an equidigital number, since it uses as much as digits as its factorization.

155556751451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2625000, while the sum is 50.

The spelling of 155556751451 in words is "one hundred fifty-five billion, five hundred fifty-six million, seven hundred fifty-one thousand, four hundred fifty-one".