20372263347451 has 16 divisors (see below), whose sum is σ = 21701352093696. Its totient is φ = 19057977415296.

The previous prime is 20372263347347. The next prime is 20372263347473. The reversal of 20372263347451 is 15474336227302.

It is a cyclic number.

It is not a de Polignac number, because 20372263347451 - 2⁷ = 20372263347323 is a prime.

It is a super-2 number, since 2×20372263347451² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20372263347395 and 20372263347404.

It is not an unprimeable number, because it can be changed into a prime (20372263447451) 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, 2006151 + ... + 6690976.

It is an arithmetic number, because the mean of its divisors is an integer number (1356334505856).

Almost surely, 2^{20372263347451} is an apocalyptic number.

20372263347451 is a deficient number, since it is larger than the sum of its proper divisors (1329088746245).

20372263347451 is a wasteful number, since it uses less digits than its factorization.

20372263347451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8697978.

The product of its (nonzero) digits is 5080320, while the sum is 49.

The spelling of 20372263347451 in words is "twenty trillion, three hundred seventy-two billion, two hundred sixty-three million, three hundred forty-seven thousand, four hundred fifty-one".