1616409501 has 24 divisors (see below), whose sum is σ = 2542411584. Its totient is φ = 910647360.

The previous prime is 1616409499. The next prime is 1616409523. The reversal of 1616409501 is 1059046161.

It is not a de Polignac number, because 1616409501 - 2¹ = 1616409499 is a prime.

It is a super-2 number, since 2×1616409501² = 5225559349846138002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616409541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67000 + ... + 87873.

It is an arithmetic number, because the mean of its divisors is an integer number (105933816).

Almost surely, 2^1616409501 is an apocalyptic number.

It is an amenable number.

1616409501 is a deficient number, since it is larger than the sum of its proper divisors (926002083).

1616409501 is a wasteful number, since it uses less digits than its factorization.

1616409501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154961 (or 154954 counting only the distinct ones).

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

The square root of 1616409501 is about 40204.5955209103. The cubic root of 1616409501 is about 1173.5919759450.

The spelling of 1616409501 in words is "one billion, six hundred sixteen million, four hundred nine thousand, five hundred one".