3420153645661 has 8 divisors (see below), whose sum is σ = 3539766067200. Its totient is φ = 3300652963440.

The previous prime is 3420153645509. The next prime is 3420153645691. The reversal of 3420153645661 is 1665463510243.

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

It is a cyclic number.

It is not a de Polignac number, because 3420153645661 - 2¹⁵ = 3420153612893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420153645691) 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, 27872541 + ... + 27994978.

It is an arithmetic number, because the mean of its divisors is an integer number (442470758400).

Almost surely, 2^{3420153645661} is an apocalyptic number.

It is an amenable number.

3420153645661 is a deficient number, since it is larger than the sum of its proper divisors (119612421539).

3420153645661 is a wasteful number, since it uses less digits than its factorization.

3420153645661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55869659.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 3420153645661 in words is "three trillion, four hundred twenty billion, one hundred fifty-three million, six hundred forty-five thousand, six hundred sixty-one".