1216615010 has 32 divisors (see below), whose sum is σ = 2388234240. Its totient is φ = 443521728.

The previous prime is 1216614991. The next prime is 1216615027. The reversal of 1216615010 is 105166121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48962 + ... + 69501.

It is an arithmetic number, because the mean of its divisors is an integer number (74632320).

Almost surely, 2^1216615010 is an apocalyptic number.

1216615010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1216615010 is a deficient number, since it is larger than the sum of its proper divisors (1171619230).

1216615010 is a wasteful number, since it uses less digits than its factorization.

1216615010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118562.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1216615010 is about 34880.0087442650. The cubic root of 1216615010 is about 1067.5405736452.

The spelling of 1216615010 in words is "one billion, two hundred sixteen million, six hundred fifteen thousand, ten".