1616654061 has 96 divisors (see below), whose sum is σ = 2822676480. Its totient is φ = 881020800.

The previous prime is 1616654059. The next prime is 1616654063. The reversal of 1616654061 is 1604566161.

It is a happy number.

1616654061 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1616654059) and next prime (1616654063).

It is not a de Polignac number, because 1616654061 - 2¹ = 1616654059 is a prime.

It is a super-2 number, since 2×1616654061² = 5227140705895583442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616654063) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2611410 + ... + 2612028.

It is an arithmetic number, because the mean of its divisors is an integer number (29402880).

Almost surely, 2^1616654061 is an apocalyptic number.

1616654061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1616654061 is a deficient number, since it is larger than the sum of its proper divisors (1206022419).

1616654061 is a wasteful number, since it uses less digits than its factorization.

1616654061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1616654061 is about 40207.6368492355. The cubic root of 1616654061 is about 1173.6511604482.

The spelling of 1616654061 in words is "one billion, six hundred sixteen million, six hundred fifty-four thousand, sixty-one".