215119125648 has 160 divisors (see below), whose sum is σ = 706254796800. Its totient is φ = 61412701824.

The previous prime is 215119125647. The next prime is 215119125671. The reversal of 215119125648 is 846521911512.

215119125648 is a `hidden beast` number, since 2 + 1 + 511 + 9 + 125 + 6 + 4 + 8 = 666.

It is a super-2 number, since 2×215119125648² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (215119125647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3778965 + ... + 3835467.

It is an arithmetic number, because the mean of its divisors is an integer number (4414092480).

Almost surely, 2^215119125648 is an apocalyptic number.

215119125648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215119125648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353127398400).

215119125648 is an abundant number, since it is smaller than the sum of its proper divisors (491135671152).

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

215119125648 is a wasteful number, since it uses less digits than its factorization.

215119125648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57786 (or 57774 counting only the distinct ones).

The product of its digits is 172800, while the sum is 45.

The spelling of 215119125648 in words is "two hundred fifteen billion, one hundred nineteen million, one hundred twenty-five thousand, six hundred forty-eight".