616206453261 has 16 divisors (see below), whose sum is σ = 941346466944. Its totient is φ = 351231021504.

The previous prime is 616206453257. The next prime is 616206453277. The reversal of 616206453261 is 162354602616.

It is not a de Polignac number, because 616206453261 - 2² = 616206453257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616206453661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36947790 + ... + 36964463.

It is an arithmetic number, because the mean of its divisors is an integer number (58834154184).

Almost surely, 2^616206453261 is an apocalyptic number.

It is an amenable number.

616206453261 is a deficient number, since it is larger than the sum of its proper divisors (325140013683).

616206453261 is a wasteful number, since it uses less digits than its factorization.

616206453261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73912660.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 616206453261 in words is "six hundred sixteen billion, two hundred six million, four hundred fifty-three thousand, two hundred sixty-one".