2215554155430 has 128 divisors (see below), whose sum is σ = 6791091342336. Its totient is φ = 449146214400.

The previous prime is 2215554155393. The next prime is 2215554155431. The reversal of 2215554155430 is 345514555122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215554155431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11601807 + ... + 11791226.

It is an arithmetic number, because the mean of its divisors is an integer number (53055401112).

Almost surely, 2^{2215554155430} is an apocalyptic number.

2215554155430 is an abundant number, since it is smaller than the sum of its proper divisors (4575537186906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2215554155430 is a wasteful number, since it uses less digits than its factorization.

2215554155430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23393102.

The product of its (nonzero) digits is 600000, while the sum is 42.

The spelling of 2215554155430 in words is "two trillion, two hundred fifteen billion, five hundred fifty-four million, one hundred fifty-five thousand, four hundred thirty".