1605100010061 has 32 divisors (see below), whose sum is σ = 2289027888000. Its totient is φ = 998497463040.

The previous prime is 1605100010023. The next prime is 1605100010071. The reversal of 1605100010061 is 1600100015061.

It is not a de Polignac number, because 1605100010061 - 2²¹ = 1605097912909 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 (1605100010071) 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, 1193635 + ... + 2152896.

It is an arithmetic number, because the mean of its divisors is an integer number (71532121500).

Almost surely, 2^{1605100010061} is an apocalyptic number.

It is an amenable number.

1605100010061 is a deficient number, since it is larger than the sum of its proper divisors (683927877939).

1605100010061 is a wasteful number, since it uses less digits than its factorization.

1605100010061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346749.

The product of its (nonzero) digits is 180, while the sum is 21.

The spelling of 1605100010061 in words is "one trillion, six hundred five billion, one hundred million, ten thousand, sixty-one".