11678155802 has 4 divisors (see below), whose sum is σ = 17517233706. Its totient is φ = 5839077900.

The previous prime is 11678155799. The next prime is 11678155813. The reversal of 11678155802 is 20855187611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20855187611 = 181 ⋅115222031.

It can be written as a sum of positive squares in only one way, i.e., 6502648321 + 5175507481 = 80639^2 + 71941^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2919538949 + ... + 2919538952.

Almost surely, 2^11678155802 is an apocalyptic number.

11678155802 is a deficient number, since it is larger than the sum of its proper divisors (5839077904).

11678155802 is an equidigital number, since it uses as much as digits as its factorization.

11678155802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5839077903.

The product of its (nonzero) digits is 134400, while the sum is 44.

The spelling of 11678155802 in words is "eleven billion, six hundred seventy-eight million, one hundred fifty-five thousand, eight hundred two".