155095590551 has 4 divisors (see below), whose sum is σ = 169195189704. Its totient is φ = 140995991400.

The previous prime is 155095590499. The next prime is 155095590553.

155095590551 is nontrivially palindromic in base 10.

155095590551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 155095590551 - 2¹⁴ = 155095574167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155095590551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155095590553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7049799560 + ... + 7049799581.

It is an arithmetic number, because the mean of its divisors is an integer number (42298797426).

Almost surely, 2^155095590551 is an apocalyptic number.

155095590551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

155095590551 is a deficient number, since it is larger than the sum of its proper divisors (14099599153).

155095590551 is a wasteful number, since it uses less digits than its factorization.

155095590551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14099599152.

The product of its (nonzero) digits is 1265625, while the sum is 50.

The spelling of 155095590551 in words is "one hundred fifty-five billion, ninety-five million, five hundred ninety thousand, five hundred fifty-one".