1616156061 has 16 divisors (see below), whose sum is σ = 2321961600. Its totient is φ = 993988800.

The previous prime is 1616156023. The next prime is 1616156071. The reversal of 1616156061 is 1606516161.

It is not a de Polignac number, because 1616156061 - 2¹¹ = 1616154013 is a prime.

It is a super-2 number, since 2×1616156061² = 5223920827014071442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616156011) 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, 63240 + ... + 85038.

It is an arithmetic number, because the mean of its divisors is an integer number (145122600).

Almost surely, 2^1616156061 is an apocalyptic number.

It is an amenable number.

1616156061 is a deficient number, since it is larger than the sum of its proper divisors (705805539).

1616156061 is a wasteful number, since it uses less digits than its factorization.

1616156061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23716.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 1616156061 is about 40201.4435188589. The cubic root of 1616156061 is about 1173.5306361470.

The spelling of 1616156061 in words is "one billion, six hundred sixteen million, one hundred fifty-six thousand, sixty-one".