66001611001050 has 96 divisors (see below), whose sum is σ = 181875377980800. Its totient is φ = 17600016170880.

The previous prime is 66001611001043. The next prime is 66001611001217. The reversal of 66001611001050 is 5010011610066.

66001611001050 is a `hidden beast` number, since 6 + 600 + 1 + 6 + 1 + 1 + 0 + 0 + 1 + 0 + 50 = 666.

It is a super-2 number, since 2×66001611001050² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59224582 + ... + 60328718.

It is an arithmetic number, because the mean of its divisors is an integer number (1894535187300).

Almost surely, 2^{66001611001050} is an apocalyptic number.

66001611001050 is an abundant number, since it is smaller than the sum of its proper divisors (115873766979750).

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

66001611001050 is a wasteful number, since it uses less digits than its factorization.

66001611001050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148437 (or 1148426 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The spelling of 66001611001050 in words is "sixty-six trillion, one billion, six hundred eleven million, one thousand, fifty".