20150015455 has 8 divisors (see below), whose sum is σ = 24213282912. Its totient is φ = 16097836128.

The previous prime is 20150015423. The next prime is 20150015477. The reversal of 20150015455 is 55451005102.

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 20150015455 - 2⁵ = 20150015423 is a prime.

It is a Duffinian number.

It is a congruent 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, 2768032 + ... + 2775301.

It is an arithmetic number, because the mean of its divisors is an integer number (3026660364).

Almost surely, 2^20150015455 is an apocalyptic number.

20150015455 is a deficient number, since it is larger than the sum of its proper divisors (4063267457).

20150015455 is an equidigital number, since it uses as much as digits as its factorization.

20150015455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5544065.

The product of its (nonzero) digits is 5000, while the sum is 28.

The spelling of 20150015455 in words is "twenty billion, one hundred fifty million, fifteen thousand, four hundred fifty-five".