612705016 has 128 divisors (see below), whose sum is σ = 1492992000. Its totient is φ = 233600640.

The previous prime is 612704993. The next prime is 612705043. The reversal of 612705016 is 610507216.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1599561 + ... + 1599943.

It is an arithmetic number, because the mean of its divisors is an integer number (11664000).

Almost surely, 2^612705016 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 612705016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (746496000).

612705016 is an abundant number, since it is smaller than the sum of its proper divisors (880286984).

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

612705016 is a wasteful number, since it uses less digits than its factorization.

612705016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 612705016 is about 24752.8789436704. The cubic root of 612705016 is about 849.3443691625.

The spelling of 612705016 in words is "six hundred twelve million, seven hundred five thousand, sixteen".