155051131951 has 2 divisors, whose sum is σ = 155051131952. Its totient is φ = 155051131950.

The previous prime is 155051131901. The next prime is 155051131969. The reversal of 155051131951 is 159131150551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155051131951 - 2⁹ = 155051131439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155051131951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155051131901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77525565975 + 77525565976.

It is an arithmetic number, because the mean of its divisors is an integer number (77525565976).

Almost surely, 2^155051131951 is an apocalyptic number.

155051131951 is a deficient number, since it is larger than the sum of its proper divisors (1).

155051131951 is an equidigital number, since it uses as much as digits as its factorization.

155051131951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16875, while the sum is 37.

The spelling of 155051131951 in words is "one hundred fifty-five billion, fifty-one million, one hundred thirty-one thousand, nine hundred fifty-one".