13155653403 has 12 divisors (see below), whose sum is σ = 19270253808. Its totient is φ = 8646907920.

The previous prime is 13155653387. The next prime is 13155653419. The reversal of 13155653403 is 30435655131.

13155653403 is a `hidden beast` number, since 13 + 1 + 556 + 53 + 40 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (13155653387) and next prime (13155653419).

It is not a de Polignac number, because 13155653403 - 2⁴ = 13155653387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13155653453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10293300 + ... + 10294577.

It is an arithmetic number, because the mean of its divisors is an integer number (1605854484).

Almost surely, 2^13155653403 is an apocalyptic number.

13155653403 is a deficient number, since it is larger than the sum of its proper divisors (6114600405).

13155653403 is a wasteful number, since it uses less digits than its factorization.

13155653403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20587954 (or 20587951 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 13155653403 in words is "thirteen billion, one hundred fifty-five million, six hundred fifty-three thousand, four hundred three".