1066501656101 has 8 divisors (see below), whose sum is σ = 1219566454464. Its totient is φ = 913613712480.

The previous prime is 1066501656097. The next prime is 1066501656131. The reversal of 1066501656101 is 1016561056601.

1066501656101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1066501656101 - 2² = 1066501656097 is a prime.

It is a super-2 number, since 2×1066501656101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066501656131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44200760 + ... + 44224881.

It is an arithmetic number, because the mean of its divisors is an integer number (152445806808).

Almost surely, 2^{1066501656101} is an apocalyptic number.

It is an amenable number.

1066501656101 is a deficient number, since it is larger than the sum of its proper divisors (153064798363).

1066501656101 is an equidigital number, since it uses as much as digits as its factorization.

1066501656101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88427371.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 1066501656101 in words is "one trillion, sixty-six billion, five hundred one million, six hundred fifty-six thousand, one hundred one".