54515666214650 has 12 divisors (see below), whose sum is σ = 101399139159342. Its totient is φ = 21806266485840.

The previous prime is 54515666214641. The next prime is 54515666214761. The reversal of 54515666214650 is 5641266651545.

It can be written as a sum of positive squares in 3 ways, for example, as 38650206191041 + 15865460023609 = 6216929^2 + 3983147^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 545156662097 + ... + 545156662196.

Almost surely, 2^{54515666214650} is an apocalyptic number.

54515666214650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

54515666214650 is a deficient number, since it is larger than the sum of its proper divisors (46883472944692).

54515666214650 is a wasteful number, since it uses less digits than its factorization.

54515666214650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090313324305 (or 1090313324300 counting only the distinct ones).

The product of its (nonzero) digits is 25920000, while the sum is 56.

The spelling of 54515666214650 in words is "fifty-four trillion, five hundred fifteen billion, six hundred sixty-six million, two hundred fourteen thousand, six hundred fifty".