20451615414 has 8 divisors (see below), whose sum is σ = 40903230840. Its totient is φ = 6817205136.

The previous prime is 20451615413. The next prime is 20451615487. The reversal of 20451615414 is 41451615402.

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

20451615414 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20451615413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1704301279 + ... + 1704301290.

It is an arithmetic number, because the mean of its divisors is an integer number (5112903855).

Almost surely, 2^20451615414 is an apocalyptic number.

20451615414 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20451615414 is a wasteful number, since it uses less digits than its factorization.

20451615414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408602574.

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 20451615414 in words is "twenty billion, four hundred fifty-one million, six hundred fifteen thousand, four hundred fourteen".