215061499632 has 320 divisors, whose sum is σ = 690806071296. Its totient is φ = 56319943680.

The previous prime is 215061499621. The next prime is 215061499651. The reversal of 215061499632 is 236994160512.

It is a super-2 number, since 2×215061499632² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17606007 + ... + 17618217.

Almost surely, 2^215061499632 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 215061499632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345403035648).

215061499632 is an abundant number, since it is smaller than the sum of its proper divisors (475744571664).

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

215061499632 is a wasteful number, since it uses less digits than its factorization.

215061499632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12348 (or 12342 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 215061499632 in words is "two hundred fifteen billion, sixty-one million, four hundred ninety-nine thousand, six hundred thirty-two".