6120644646154 has 16 divisors (see below), whose sum is σ = 9721137603528. Its totient is φ = 2880269658112.

The previous prime is 6120644646143. The next prime is 6120644646301. The reversal of 6120644646154 is 4516464460216.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4352343095529 + 1768301550625 = 2086227^2 + 1329775^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6120644646098 and 6120644646107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2025402 + ... + 4042714.

Almost surely, 2^{6120644646154} is an apocalyptic number.

6120644646154 is a deficient number, since it is larger than the sum of its proper divisors (3600492957374).

6120644646154 is a wasteful number, since it uses less digits than its factorization.

6120644646154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106569.

The product of its (nonzero) digits is 3317760, while the sum is 49.

The spelling of 6120644646154 in words is "six trillion, one hundred twenty billion, six hundred forty-four million, six hundred forty-six thousand, one hundred fifty-four".