2145405023554 has 32 divisors (see below), whose sum is σ = 3551432693760. Its totient is φ = 965695824000.

The previous prime is 2145405023527. The next prime is 2145405023681. The reversal of 2145405023554 is 4553205045412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2686207 + ... + 3392125.

It is an arithmetic number, because the mean of its divisors is an integer number (110982271680).

Almost surely, 2^{2145405023554} is an apocalyptic number.

2145405023554 is a deficient number, since it is larger than the sum of its proper divisors (1406027670206).

2145405023554 is a wasteful number, since it uses less digits than its factorization.

2145405023554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708826.

The product of its (nonzero) digits is 480000, while the sum is 40.

The spelling of 2145405023554 in words is "two trillion, one hundred forty-five billion, four hundred five million, twenty-three thousand, five hundred fifty-four".