15120220355 has 8 divisors (see below), whose sum is σ = 18933145632. Its totient is φ = 11570255488.

The previous prime is 15120220337. The next prime is 15120220373. The reversal of 15120220355 is 55302202151.

It is an interprime number because it is at equal distance from previous prime (15120220337) and next prime (15120220373).

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

It is a cyclic number.

It is not a de Polignac number, because 15120220355 - 2⁸ = 15120220099 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, 65739974 + ... + 65740203.

It is an arithmetic number, because the mean of its divisors is an integer number (2366643204).

Almost surely, 2^15120220355 is an apocalyptic number.

15120220355 is a deficient number, since it is larger than the sum of its proper divisors (3812925277).

15120220355 is a wasteful number, since it uses less digits than its factorization.

15120220355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131480205.

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 15120220355 in words is "fifteen billion, one hundred twenty million, two hundred twenty thousand, three hundred fifty-five".