20255416454156 has 24 divisors (see below), whose sum is σ = 38308558790544. Its totient is φ = 9315619629120.

The previous prime is 20255416454069. The next prime is 20255416454213. The reversal of 20255416454156 is 65145461455202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688195955 + ... + 688225386.

It is an arithmetic number, because the mean of its divisors is an integer number (1596189949606).

Almost surely, 2^{20255416454156} is an apocalyptic number.

20255416454156 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20255416454156 is a deficient number, since it is larger than the sum of its proper divisors (18053142336388).

20255416454156 is a wasteful number, since it uses less digits than its factorization.

20255416454156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376421641 (or 1376421639 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 50.

The spelling of 20255416454156 in words is "twenty trillion, two hundred fifty-five billion, four hundred sixteen million, four hundred fifty-four thousand, one hundred fifty-six".