20415460662443 has 32 divisors (see below), whose sum is σ = 25804283166720. Its totient is φ = 15688668764160.

The previous prime is 20415460662439. The next prime is 20415460662481. The reversal of 20415460662443 is 34426606451402.

It is not a de Polignac number, because 20415460662443 - 2² = 20415460662439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20415460662403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57928598 + ... + 58279956.

It is an arithmetic number, because the mean of its divisors is an integer number (806383848960).

Almost surely, 2^{20415460662443} is an apocalyptic number.

20415460662443 is a deficient number, since it is larger than the sum of its proper divisors (5388822504277).

20415460662443 is a wasteful number, since it uses less digits than its factorization.

20415460662443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361787.

The product of its (nonzero) digits is 3317760, while the sum is 47.

The spelling of 20415460662443 in words is "twenty trillion, four hundred fifteen billion, four hundred sixty million, six hundred sixty-two thousand, four hundred forty-three".