102151055448 has 128 divisors (see below), whose sum is σ = 305786880000. Its totient is φ = 31409824896.

The previous prime is 102151055429. The next prime is 102151055449. The reversal of 102151055448 is 844550151201.

102151055448 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 5 + 105 + 544 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102151055449) 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, 4422313 + ... + 4445351.

It is an arithmetic number, because the mean of its divisors is an integer number (2388960000).

Almost surely, 2^102151055448 is an apocalyptic number.

102151055448 is a gapful number since it is divisible by the number (18) 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 102151055448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152893440000).

102151055448 is an abundant number, since it is smaller than the sum of its proper divisors (203635824552).

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

102151055448 is a wasteful number, since it uses less digits than its factorization.

102151055448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24646 (or 24636 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The spelling of 102151055448 in words is "one hundred two billion, one hundred fifty-one million, fifty-five thousand, four hundred forty-eight".