2154556402235 has 8 divisors (see below), whose sum is σ = 2589948566016. Its totient is φ = 1720657866240.

The previous prime is 2154556402133. The next prime is 2154556402309. The reversal of 2154556402235 is 5322046554512.

It is a happy number.

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

It is not a de Polignac number, because 2154556402235 - 2³² = 2150261434939 is a prime.

It is a super-2 number, since 2×2154556402235² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373403771 + ... + 373409540.

It is an arithmetic number, because the mean of its divisors is an integer number (323743570752).

Almost surely, 2^{2154556402235} is an apocalyptic number.

2154556402235 is a deficient number, since it is larger than the sum of its proper divisors (435392163781).

2154556402235 is an equidigital number, since it uses as much as digits as its factorization.

2154556402235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746813893.

The product of its (nonzero) digits is 1440000, while the sum is 44.

The spelling of 2154556402235 in words is "two trillion, one hundred fifty-four billion, five hundred fifty-six million, four hundred two thousand, two hundred thirty-five".