101523378423856 has 80 divisors (see below), whose sum is σ = 206623431753984. Its totient is φ = 48231623128832.

The previous prime is 101523378423853. The next prime is 101523378423871. The reversal of 101523378423856 is 658324873325101.

It is a self number, because there is not a number n which added to its sum of digits gives 101523378423856.

It is not an unprimeable number, because it can be changed into a prime (101523378423851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35634750 + ... + 38378146.

Almost surely, 2^{101523378423856} is an apocalyptic number.

101523378423856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101523378423856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103311715876992).

101523378423856 is an abundant number, since it is smaller than the sum of its proper divisors (105100053330128).

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

101523378423856 is a wasteful number, since it uses less digits than its factorization.

101523378423856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744098 (or 2744092 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 58.

The spelling of 101523378423856 in words is "one hundred one trillion, five hundred twenty-three billion, three hundred seventy-eight million, four hundred twenty-three thousand, eight hundred fifty-six".