13157276121602 has 4 divisors (see below), whose sum is σ = 19735914182406. Its totient is φ = 6578638060800.

The previous prime is 13157276121559. The next prime is 13157276121643. The reversal of 13157276121602 is 20612167275131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8340607536121 + 4816668585481 = 2888011^2 + 2194691^2 .

It is a super-2 number, since 2×13157276121602² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3289319030399 + ... + 3289319030402.

Almost surely, 2^{13157276121602} is an apocalyptic number.

13157276121602 is a deficient number, since it is larger than the sum of its proper divisors (6578638060804).

13157276121602 is an equidigital number, since it uses as much as digits as its factorization.

13157276121602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6578638060803.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 13157276121602 in words is "thirteen trillion, one hundred fifty-seven billion, two hundred seventy-six million, one hundred twenty-one thousand, six hundred two".