1656503061 has 16 divisors (see below), whose sum is σ = 2321123904. Its totient is φ = 1049497344.

The previous prime is 1656503029. The next prime is 1656503063. The reversal of 1656503061 is 1603056561.

1656503061 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1656503061 - 2⁵ = 1656503029 is a prime.

It is a super-2 number, since 2×1656503061² = 5488004782204739442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656503063) 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, 168756 + ... + 178301.

It is an arithmetic number, because the mean of its divisors is an integer number (145070244).

Almost surely, 2^1656503061 is an apocalyptic number.

It is an amenable number.

1656503061 is a deficient number, since it is larger than the sum of its proper divisors (664620843).

1656503061 is a wasteful number, since it uses less digits than its factorization.

1656503061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347140.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 1656503061 is about 40700.1604542292. The cubic root of 1656503061 is about 1183.2161284609.

The spelling of 1656503061 in words is "one billion, six hundred fifty-six million, five hundred three thousand, sixty-one".