601065155661 has 16 divisors (see below), whose sum is σ = 808228151808. Its totient is φ = 397311361200.

The previous prime is 601065155657. The next prime is 601065155687. The reversal of 601065155661 is 166551560106.

601065155661 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 601065155661 - 2² = 601065155657 is a prime.

It is a super-2 number, since 2×601065155661² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601065155611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192841 + ... + 1113246.

It is an arithmetic number, because the mean of its divisors is an integer number (50514259488).

Almost surely, 2^601065155661 is an apocalyptic number.

It is an amenable number.

601065155661 is a deficient number, since it is larger than the sum of its proper divisors (207162996147).

601065155661 is a wasteful number, since it uses less digits than its factorization.

601065155661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307392.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 601065155661 in words is "six hundred one billion, sixty-five million, one hundred fifty-five thousand, six hundred sixty-one".