15061220155 has 8 divisors (see below), whose sum is σ = 18085278384. Its totient is φ = 12041100000.

The previous prime is 15061220129. The next prime is 15061220173. The reversal of 15061220155 is 55102216051.

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

It is not a de Polignac number, because 15061220155 - 2⁵ = 15061220123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 976096 + ... + 991405.

It is an arithmetic number, because the mean of its divisors is an integer number (2260659798).

Almost surely, 2^15061220155 is an apocalyptic number.

15061220155 is a deficient number, since it is larger than the sum of its proper divisors (3024058229).

15061220155 is a wasteful number, since it uses less digits than its factorization.

15061220155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969037.

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 15061220155 in words is "fifteen billion, sixty-one million, two hundred twenty thousand, one hundred fifty-five".