102195505077 has 16 divisors (see below), whose sum is σ = 137886043200. Its totient is φ = 67322391552.

The previous prime is 102195505039. The next prime is 102195505133. The reversal of 102195505077 is 770505591201.

It is not a de Polignac number, because 102195505077 - 2¹¹ = 102195503029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102195505777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506023 + ... + 678564.

It is an arithmetic number, because the mean of its divisors is an integer number (8617877700).

Almost surely, 2^102195505077 is an apocalyptic number.

It is an amenable number.

102195505077 is a deficient number, since it is larger than the sum of its proper divisors (35690538123).

102195505077 is a wasteful number, since it uses less digits than its factorization.

102195505077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184932.

The product of its (nonzero) digits is 110250, while the sum is 42.

The spelling of 102195505077 in words is "one hundred two billion, one hundred ninety-five million, five hundred five thousand, seventy-seven".