6156611064 has 192 divisors, whose sum is σ = 18408630240. Its totient is φ = 1920983040.

The previous prime is 6156611051. The next prime is 6156611077. The reversal of 6156611064 is 4601166516.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6156611051) and next prime (6156611077).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7964182 + ... + 7964954.

Almost surely, 2^6156611064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6156611064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9204315120).

6156611064 is an abundant number, since it is smaller than the sum of its proper divisors (12252019176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6156611064 is a wasteful number, since it uses less digits than its factorization.

6156611064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 6156611064 is about 78464.0749897684. The cubic root of 6156611064 is about 1832.7950622827.

The spelling of 6156611064 in words is "six billion, one hundred fifty-six million, six hundred eleven thousand, sixty-four".