102011651010 has 24 divisors (see below), whose sum is σ = 265230292860. Its totient is φ = 27203106912.

The previous prime is 102011650999. The next prime is 102011651017. The reversal of 102011651010 is 10156110201.

It is a happy number.

102011651010 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 1 + 1 + 651 + 0 + 10 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 97566895449 + 4444755561 = 312357^2 + 66669^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (102011651017) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 566731305 + ... + 566731484.

Almost surely, 2^102011651010 is an apocalyptic number.

102011651010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102011651010 is an abundant number, since it is smaller than the sum of its proper divisors (163218641850).

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

102011651010 is a wasteful number, since it uses less digits than its factorization.

102011651010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133462802 (or 1133462799 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

Adding to 102011651010 its reverse (10156110201), we get a palindrome (112167761211).

The spelling of 102011651010 in words is "one hundred two billion, eleven million, six hundred fifty-one thousand, ten".