215154545020000 has 120 divisors (see below), whose sum is σ = 534553176315312. Its totient is φ = 85209720000000.

The previous prime is 215154545019949. The next prime is 215154545020043. The reversal of 215154545020000 is 20545451512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51236076 + ... + 55276075.

Almost surely, 2^{215154545020000} is an apocalyptic number.

215154545020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215154545020000 is an abundant number, since it is smaller than the sum of its proper divisors (319398631295312).

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

215154545020000 is a wasteful number, since it uses less digits than its factorization.

215154545020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106512282 (or 106512259 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 215154545020000 in words is "two hundred fifteen trillion, one hundred fifty-four billion, five hundred forty-five million, twenty thousand".