1156779016 has 32 divisors (see below), whose sum is σ = 2209284000. Its totient is φ = 567668736.

The previous prime is 1156778969. The next prime is 1156779017. The reversal of 1156779016 is 6109776511.

It is not an unprimeable number, because it can be changed into a prime (1156779017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361375 + ... + 364561.

It is an arithmetic number, because the mean of its divisors is an integer number (69040125).

Almost surely, 2^1156779016 is an apocalyptic number.

It is an amenable number.

1156779016 is a deficient number, since it is larger than the sum of its proper divisors (1052504984).

1156779016 is a wasteful number, since it uses less digits than its factorization.

1156779016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021 (or 4017 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 43.

The square root of 1156779016 is about 34011.4541882584. The cubic root of 1156779016 is about 1049.7441601925.

The spelling of 1156779016 in words is "one billion, one hundred fifty-six million, seven hundred seventy-nine thousand, sixteen".