15605655000061 has 8 divisors (see below), whose sum is σ = 17835060393920. Its totient is φ = 13376256133248.

The previous prime is 15605655000041. The next prime is 15605655000077. The reversal of 15605655000061 is 16000055650651.

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 15605655000061 - 2⁷ = 15605654999933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15605654999978 and 15605655000023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15605655000031) 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, 5669770 + ... + 7959748.

It is an arithmetic number, because the mean of its divisors is an integer number (2229382549240).

Almost surely, 2^{15605655000061} is an apocalyptic number.

It is an amenable number.

15605655000061 is a deficient number, since it is larger than the sum of its proper divisors (2229405393859).

15605655000061 is an equidigital number, since it uses as much as digits as its factorization.

15605655000061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263523.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 15605655000061 in words is "fifteen trillion, six hundred five billion, six hundred fifty-five million, sixty-one", and thus it is an aban number.