12690155016 has 192 divisors, whose sum is σ = 43895779200. Its totient is φ = 3215692800.

The previous prime is 12690154963. The next prime is 12690155039. The reversal of 12690155016 is 61055109621.

12690155016 is a `hidden beast` number, since 1 + 2 + 6 + 90 + 1 + 550 + 16 = 666.

It is a super-2 number, since 2×12690155016² (a number of 21 digits) contains 22 as substring.

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

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, 199390 + ... + 255218.

It is an arithmetic number, because the mean of its divisors is an integer number (228623850).

Almost surely, 2^12690155016 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 12690155016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21947889600).

12690155016 is an abundant number, since it is smaller than the sum of its proper divisors (31205624184).

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

12690155016 is a wasteful number, since it uses less digits than its factorization.

12690155016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55900 (or 55893 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The spelling of 12690155016 in words is "twelve billion, six hundred ninety million, one hundred fifty-five thousand, sixteen".