20373723366 has 16 divisors (see below), whose sum is σ = 40765886064. Its totient is φ = 6788167904.

The previous prime is 20373723347. The next prime is 20373723367. The reversal of 20373723366 is 66332737302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20373723367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753921 + ... + 780476.

It is an arithmetic number, because the mean of its divisors is an integer number (2547867879).

Almost surely, 2^20373723366 is an apocalyptic number.

20373723366 is an abundant number, since it is smaller than the sum of its proper divisors (20392162698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20373723366 is a wasteful number, since it uses less digits than its factorization.

20373723366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536615.

The product of its (nonzero) digits is 571536, while the sum is 42.

The spelling of 20373723366 in words is "twenty billion, three hundred seventy-three million, seven hundred twenty-three thousand, three hundred sixty-six".