20451410765 has 8 divisors (see below), whose sum is σ = 24566973408. Its totient is φ = 16344274960.

The previous prime is 20451410761. The next prime is 20451410783. The reversal of 20451410765 is 56701415402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20451410765 - 2² = 20451410761 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20451410761) 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, 2101367 + ... + 2111076.

It is an arithmetic number, because the mean of its divisors is an integer number (3070871676).

Almost surely, 2^20451410765 is an apocalyptic number.

It is an amenable number.

20451410765 is a deficient number, since it is larger than the sum of its proper divisors (4115562643).

20451410765 is an equidigital number, since it uses as much as digits as its factorization.

20451410765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213419.

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 20451410765 in words is "twenty billion, four hundred fifty-one million, four hundred ten thousand, seven hundred sixty-five".