616145543757 has 6 divisors (see below), whose sum is σ = 889988007662. Its totient is φ = 410763695832.

The previous prime is 616145543737. The next prime is 616145543773. The reversal of 616145543757 is 757345541616.

616145543757 is a `hidden beast` number, since 6 + 1 + 6 + 1 + 4 + 554 + 37 + 57 = 666.

616145543757 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 609345727236 + 6799816521 = 780606^2 + 82461^2 .

It is not a de Polignac number, because 616145543757 - 2¹⁸ = 616145281613 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 (616145543737) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34230307978 + ... + 34230307995.

Almost surely, 2^616145543757 is an apocalyptic number.

It is an amenable number.

616145543757 is a deficient number, since it is larger than the sum of its proper divisors (273842463905).

616145543757 is a wasteful number, since it uses less digits than its factorization.

616145543757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68460615979 (or 68460615976 counting only the distinct ones).

The product of its digits is 10584000, while the sum is 54.

The spelling of 616145543757 in words is "six hundred sixteen billion, one hundred forty-five million, five hundred forty-three thousand, seven hundred fifty-seven".