20932446451 has 16 divisors (see below), whose sum is σ = 24207482880. Its totient is φ = 17729712000.

The previous prime is 20932446421. The next prime is 20932446463. The reversal of 20932446451 is 15464423902.

It is a happy number.

It is not a de Polignac number, because 20932446451 - 2¹⁵ = 20932413683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20932446421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176235 + ... + 270043.

It is an arithmetic number, because the mean of its divisors is an integer number (1512967680).

Almost surely, 2^20932446451 is an apocalyptic number.

20932446451 is a deficient number, since it is larger than the sum of its proper divisors (3275036429).

20932446451 is a wasteful number, since it uses less digits than its factorization.

20932446451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94194.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 20932446451 in words is "twenty billion, nine hundred thirty-two million, four hundred forty-six thousand, four hundred fifty-one".