616406522061 has 32 divisors (see below), whose sum is σ = 922925985408. Its totient is φ = 362752266240.

The previous prime is 616406522059. The next prime is 616406522101. The reversal of 616406522061 is 160225604616.

It is not a de Polignac number, because 616406522061 - 2¹ = 616406522059 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616406520061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1647016 + ... + 1986321.

It is an arithmetic number, because the mean of its divisors is an integer number (28841437044).

Almost surely, 2^616406522061 is an apocalyptic number.

It is an amenable number.

616406522061 is a deficient number, since it is larger than the sum of its proper divisors (306519463347).

616406522061 is a wasteful number, since it uses less digits than its factorization.

616406522061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633501.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 616406522061 in words is "six hundred sixteen billion, four hundred six million, five hundred twenty-two thousand, sixty-one".