155105510051 has 8 divisors (see below), whose sum is σ = 155203118400. Its totient is φ = 155007937728.

The previous prime is 155105510041. The next prime is 155105510057. The reversal of 155105510051 is 150015501551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155105510051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155105509996 and 155105510023.

It is not an unprimeable number, because it can be changed into a prime (155105510057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16585925 + ... + 16595273.

It is an arithmetic number, because the mean of its divisors is an integer number (19400389800).

Almost surely, 2^155105510051 is an apocalyptic number.

155105510051 is a deficient number, since it is larger than the sum of its proper divisors (97608349).

155105510051 is an equidigital number, since it uses as much as digits as its factorization.

155105510051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18013.

The product of its (nonzero) digits is 3125, while the sum is 29.

The spelling of 155105510051 in words is "one hundred fifty-five billion, one hundred five million, five hundred ten thousand, fifty-one".