42666610400653 has 4 divisors (see below), whose sum is σ = 42736901357440. Its totient is φ = 42596319443868.

The previous prime is 42666610400633. The next prime is 42666610400657. The reversal of 42666610400653 is 35600401666624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42666610400653 is a prime.

It is a super-2 number, since 2×42666610400653² (a number of 28 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 = 42666610400597 and 42666610400606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42666610400657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35145477483 + ... + 35145478696.

It is an arithmetic number, because the mean of its divisors is an integer number (10684225339360).

Almost surely, 2^{42666610400653} is an apocalyptic number.

It is an amenable number.

42666610400653 is a deficient number, since it is larger than the sum of its proper divisors (70290956787).

42666610400653 is an equidigital number, since it uses as much as digits as its factorization.

42666610400653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70290956786.

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 42666610400653 in words is "forty-two trillion, six hundred sixty-six billion, six hundred ten million, four hundred thousand, six hundred fifty-three".