20573001772 has 12 divisors (see below), whose sum is σ = 36006563320. Its totient is φ = 10285412256.

The previous prime is 20573001719. The next prime is 20573001781. The reversal of 20573001772 is 27710037502.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228873 + ... + 305824.

Almost surely, 2^20573001772 is an apocalyptic number.

It is an amenable number.

20573001772 is a deficient number, since it is larger than the sum of its proper divisors (15433561548).

20573001772 is a wasteful number, since it uses less digits than its factorization.

20573001772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544320 (or 544318 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 34.

The spelling of 20573001772 in words is "twenty billion, five hundred seventy-three million, one thousand, seven hundred seventy-two".