1600661156055 has 16 divisors (see below), whose sum is σ = 2758062300000. Its totient is φ = 788017799808.

The previous prime is 1600661156053. The next prime is 1600661156089. The reversal of 1600661156055 is 5506511660061.

It is not a de Polignac number, because 1600661156055 - 2¹ = 1600661156053 is a prime.

It is a super-2 number, since 2×1600661156055² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1600661155998 and 1600661156016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600661156053) 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, 4104259180 + ... + 4104259569.

It is an arithmetic number, because the mean of its divisors is an integer number (172378893750).

Almost surely, 2^{1600661156055} is an apocalyptic number.

1600661156055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1600661156055 is a deficient number, since it is larger than the sum of its proper divisors (1157401143945).

1600661156055 is a wasteful number, since it uses less digits than its factorization.

1600661156055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8208518770.

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

The spelling of 1600661156055 in words is "one trillion, six hundred billion, six hundred sixty-one million, one hundred fifty-six thousand, fifty-five".