102151655450 has 96 divisors (see below), whose sum is σ = 207095963760. Its totient is φ = 37262131200.

The previous prime is 102151655449. The next prime is 102151655479. The reversal of 102151655450 is 54556151201.

It can be written as a sum of positive squares in 24 ways, for example, as 58559644081 + 43592011369 = 241991^2 + 208787^2 .

It is a super-2 number, since 2×102151655450² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102151655450.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47979986 + ... + 47982114.

Almost surely, 2^102151655450 is an apocalyptic number.

102151655450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102151655450 is an abundant number, since it is smaller than the sum of its proper divisors (104944308310).

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

102151655450 is a wasteful number, since it uses less digits than its factorization.

102151655450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012 (or 3007 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 102151655450 in words is "one hundred two billion, one hundred fifty-one million, six hundred fifty-five thousand, four hundred fifty".