215023426553548 has 24 divisors (see below), whose sum is σ = 377493212539520. Its totient is φ = 107168518454400.

The previous prime is 215023426553521. The next prime is 215023426553597. The reversal of 215023426553548 is 845355624320512.

It is a happy number.

It is a super-2 number, since 2×215023426553548² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34023393 + ... + 39845176.

Almost surely, 2^{215023426553548} is an apocalyptic number.

It is an amenable number.

215023426553548 is a deficient number, since it is larger than the sum of its proper divisors (162469785985972).

215023426553548 is a wasteful number, since it uses less digits than its factorization.

215023426553548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73870897 (or 73870895 counting only the distinct ones).

The product of its (nonzero) digits is 34560000, while the sum is 55.

The spelling of 215023426553548 in words is "two hundred fifteen trillion, twenty-three billion, four hundred twenty-six million, five hundred fifty-three thousand, five hundred forty-eight".