215090070240 has 96 divisors (see below), whose sum is σ = 677917689120. Its totient is φ = 57324847104.

The previous prime is 215090070233. The next prime is 215090070257. The reversal of 215090070240 is 42070090512.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 215090070198 and 215090070207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 726876 + ... + 979044.

It is an arithmetic number, because the mean of its divisors is an integer number (7061642595).

Almost surely, 2^215090070240 is an apocalyptic number.

215090070240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215090070240 is an abundant number, since it is smaller than the sum of its proper divisors (462827618880).

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

215090070240 is a wasteful number, since it uses less digits than its factorization.

215090070240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253964 (or 253956 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The spelling of 215090070240 in words is "two hundred fifteen billion, ninety million, seventy thousand, two hundred forty".