123445654156 has 96 divisors (see below), whose sum is σ = 258435201024. Its totient is φ = 50937984000.

The previous prime is 123445654141. The next prime is 123445654159. The reversal of 123445654156 is 651456544321.

It is not an unprimeable number, because it can be changed into a prime (123445654159) 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, 7110046 + ... + 7127386.

It is an arithmetic number, because the mean of its divisors is an integer number (2692033344).

Almost surely, 2^123445654156 is an apocalyptic number.

It is an amenable number.

123445654156 is an abundant number, since it is smaller than the sum of its proper divisors (134989546868).

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

123445654156 is a wasteful number, since it uses less digits than its factorization.

123445654156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17711 (or 17709 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 46.

The spelling of 123445654156 in words is "one hundred twenty-three billion, four hundred forty-five million, six hundred fifty-four thousand, one hundred fifty-six".