13555557902 has 16 divisors (see below), whose sum is σ = 20616291072. Its totient is φ = 6683500800.

The previous prime is 13555557901. The next prime is 13555557943. The reversal of 13555557902 is 20975555531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13555557901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086902 + ... + 1099302.

It is an arithmetic number, because the mean of its divisors is an integer number (1288518192).

Almost surely, 2^13555557902 is an apocalyptic number.

13555557902 is a deficient number, since it is larger than the sum of its proper divisors (7060733170).

13555557902 is a wasteful number, since it uses less digits than its factorization.

13555557902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19963.

The product of its (nonzero) digits is 1181250, while the sum is 47.

The spelling of 13555557902 in words is "thirteen billion, five hundred fifty-five million, five hundred fifty-seven thousand, nine hundred two".