1556410061 has 32 divisors (see below), whose sum is σ = 1788635520. Its totient is φ = 1345075200.

The previous prime is 1556410049. The next prime is 1556410103. The reversal of 1556410061 is 1600146551.

It is a cyclic number.

It is not a de Polignac number, because 1556410061 - 2¹⁴ = 1556393677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1556410861) 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, 2793995 + ... + 2794551.

It is an arithmetic number, because the mean of its divisors is an integer number (55894860).

Almost surely, 2^1556410061 is an apocalyptic number.

It is an amenable number.

1556410061 is a deficient number, since it is larger than the sum of its proper divisors (232225459).

1556410061 is a wasteful number, since it uses less digits than its factorization.

1556410061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 1556410061 is about 39451.3632337338. The cubic root of 1556410061 is about 1158.8876725794.

The spelling of 1556410061 in words is "one billion, five hundred fifty-six million, four hundred ten thousand, sixty-one".