102946203855 has 32 divisors (see below), whose sum is σ = 199653246720. Its totient is φ = 49913310240.

The previous prime is 102946203853. The next prime is 102946203859. The reversal of 102946203855 is 558302649201.

102946203855 is a `hidden beast` number, since 10 + 2 + 9 + 4 + 620 + 3 + 8 + 5 + 5 = 666.

It is not a de Polignac number, because 102946203855 - 2¹ = 102946203853 is a prime.

It is a super-2 number, since 2×102946203855² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 102946203855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102946203853) 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, 34660537 + ... + 34663506.

It is an arithmetic number, because the mean of its divisors is an integer number (6239163960).

Almost surely, 2^102946203855 is an apocalyptic number.

102946203855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102946203855 is a deficient number, since it is larger than the sum of its proper divisors (96707042865).

102946203855 is a wasteful number, since it uses less digits than its factorization.

102946203855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69324068 (or 69324062 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 102946203855 in words is "one hundred two billion, nine hundred forty-six million, two hundred three thousand, eight hundred fifty-five".