54145100166646 has 16 divisors (see below), whose sum is σ = 85492536539760. Its totient is φ = 25647597090720.

The previous prime is 54145100166637. The next prime is 54145100166713. The reversal of 54145100166646 is 64666100154145.

It is a super-2 number, since 2×54145100166646² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54145100166646.

It is a congruent number.

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, 10742440 + ... + 14956276.

It is an arithmetic number, because the mean of its divisors is an integer number (5343283533735).

Almost surely, 2^{54145100166646} is an apocalyptic number.

54145100166646 is a deficient number, since it is larger than the sum of its proper divisors (31347436373114).

54145100166646 is a wasteful number, since it uses less digits than its factorization.

54145100166646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4551999.

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 54145100166646 in words is "fifty-four trillion, one hundred forty-five billion, one hundred million, one hundred sixty-six thousand, six hundred forty-six".