20373496717401 has 27 divisors (see below), whose sum is σ = 29736814379103. Its totient is φ = 13441440481920.

The previous prime is 20373496717393. The next prime is 20373496717463. The reversal of 20373496717401 is 10471769437302.

It is a happy number.

The square root of 20373496717401 is 4513701.

It is a perfect power (a square), and thus also a powerful number.

20373496717401 is a `hidden beast` number, since 2 + 0 + 373 + 49 + 67 + 174 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9148477376025 + 11225019341376 = 3024645^2 + 3350376^2 .

It is not a de Polignac number, because 20373496717401 - 2³ = 20373496717393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20373496717481) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1313479236 + ... + 1313494746.

Almost surely, 2^{20373496717401} is an apocalyptic number.

20373496717401 is the 4513701-st square number.

20373496717401 is the 2256851-st centered octagonal number.

It is an amenable number.

20373496717401 is a deficient number, since it is larger than the sum of its proper divisors (9363317661702).

20373496717401 is an frugal number, since it uses more digits than its factorization.

20373496717401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31222 (or 15611 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The spelling of 20373496717401 in words is "twenty trillion, three hundred seventy-three billion, four hundred ninety-six million, seven hundred seventeen thousand, four hundred one".