20765741503 has 16 divisors (see below), whose sum is σ = 22956950016. Its totient is φ = 18662243040.

The previous prime is 20765741483. The next prime is 20765741527. The reversal of 20765741503 is 30514756702.

It is a cyclic number.

It is not a de Polignac number, because 20765741503 - 2²⁹ = 20228870591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20765741593) 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, 114126 + ... + 233572.

It is an arithmetic number, because the mean of its divisors is an integer number (1434809376).

Almost surely, 2^20765741503 is an apocalyptic number.

20765741503 is a deficient number, since it is larger than the sum of its proper divisors (2191208513).

20765741503 is a wasteful number, since it uses less digits than its factorization.

20765741503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119814.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 20765741503 in words is "twenty billion, seven hundred sixty-five million, seven hundred forty-one thousand, five hundred three".