12620340178501 has 4 divisors (see below), whose sum is σ = 13767643831104. Its totient is φ = 11473036525900.

The previous prime is 12620340178469. The next prime is 12620340178507. The reversal of 12620340178501 is 10587104302621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12620340178501 - 2⁵ = 12620340178469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12620340178507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573651826285 + ... + 573651826306.

It is an arithmetic number, because the mean of its divisors is an integer number (3441910957776).

Almost surely, 2^{12620340178501} is an apocalyptic number.

12620340178501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12620340178501 is a deficient number, since it is larger than the sum of its proper divisors (1147303652603).

12620340178501 is a wasteful number, since it uses less digits than its factorization.

12620340178501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147303652602.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 12620340178501 in words is "twelve trillion, six hundred twenty billion, three hundred forty million, one hundred seventy-eight thousand, five hundred one".