15870412206 has 96 divisors (see below), whose sum is σ = 39251976192. Its totient is φ = 4587295680.

The previous prime is 15870412199. The next prime is 15870412213. The reversal of 15870412206 is 60221407851.

15870412206 is a `hidden beast` number, since 158 + 70 + 412 + 20 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (15870412199) and next prime (15870412213).

It is a Curzon number.

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, 1693971 + ... + 1703313.

It is an arithmetic number, because the mean of its divisors is an integer number (408874752).

Almost surely, 2^15870412206 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15870412206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19625988096).

15870412206 is an abundant number, since it is smaller than the sum of its proper divisors (23381563986).

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

15870412206 is a wasteful number, since it uses less digits than its factorization.

15870412206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9758 (or 9755 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 15870412206 in words is "fifteen billion, eight hundred seventy million, four hundred twelve thousand, two hundred six".