2045320305554 has 4 divisors (see below), whose sum is σ = 3067980458334. Its totient is φ = 1022660152776.

The previous prime is 2045320305547. The next prime is 2045320305583. The reversal of 2045320305554 is 4555030235402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2037964670329 + 7355635225 = 1427573^2 + 85765^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511330076387 + ... + 511330076390.

Almost surely, 2^{2045320305554} is an apocalyptic number.

2045320305554 is a deficient number, since it is larger than the sum of its proper divisors (1022660152780).

2045320305554 is a wasteful number, since it uses less digits than its factorization.

2045320305554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022660152779.

The product of its (nonzero) digits is 360000, while the sum is 38.

The spelling of 2045320305554 in words is "two trillion, forty-five billion, three hundred twenty million, three hundred five thousand, five hundred fifty-four".