2066039157657 has 8 divisors (see below), whose sum is σ = 2754756037600. Its totient is φ = 1377340858080.

The previous prime is 2066039157643. The next prime is 2066039157673. The reversal of 2066039157657 is 7567519306602.

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

It is not a de Polignac number, because 2066039157657 - 2⁷ = 2066039157529 is a prime.

It is a super-2 number, since 2×2066039157657² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2066039157597 and 2066039157606.

It is not an unprimeable number, because it can be changed into a prime (2066039157157) 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, 4383532 + ... + 4831917.

It is an arithmetic number, because the mean of its divisors is an integer number (344344504700).

Almost surely, 2^{2066039157657} is an apocalyptic number.

It is an amenable number.

2066039157657 is a deficient number, since it is larger than the sum of its proper divisors (688716879943).

2066039157657 is an equidigital number, since it uses as much as digits as its factorization.

2066039157657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9290183.

The product of its (nonzero) digits is 14288400, while the sum is 57.

The spelling of 2066039157657 in words is "two trillion, sixty-six billion, thirty-nine million, one hundred fifty-seven thousand, six hundred fifty-seven".