20040531045 has 16 divisors (see below), whose sum is σ = 32126171712. Its totient is φ = 10667842560.

The previous prime is 20040530981. The next prime is 20040531059. The reversal of 20040531045 is 54013504002.

It is not a de Polignac number, because 20040531045 - 2⁶ = 20040530981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1269436 + ... + 1285125.

It is an arithmetic number, because the mean of its divisors is an integer number (2007885732).

Almost surely, 2^20040531045 is an apocalyptic number.

It is an amenable number.

20040531045 is a deficient number, since it is larger than the sum of its proper divisors (12085640667).

20040531045 is a wasteful number, since it uses less digits than its factorization.

20040531045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555092.

The product of its (nonzero) digits is 2400, while the sum is 24.

The spelling of 20040531045 in words is "twenty billion, forty million, five hundred thirty-one thousand, forty-five".