1616460191 has 4 divisors (see below), whose sum is σ = 1629188352. Its totient is φ = 1603732032.

The previous prime is 1616460173. The next prime is 1616460211. The reversal of 1616460191 is 1910646161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1910646161 = 5107 ⋅374123.

It is a cyclic number.

It is not a de Polignac number, because 1616460191 - 2⁶ = 1616460127 is a prime.

It is a super-2 number, since 2×1616460191² = 5225887098175512962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616460491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6363890 + ... + 6364143.

It is an arithmetic number, because the mean of its divisors is an integer number (407297088).

Almost surely, 2^1616460191 is an apocalyptic number.

1616460191 is a deficient number, since it is larger than the sum of its proper divisors (12728161).

1616460191 is a wasteful number, since it uses less digits than its factorization.

1616460191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12728160.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 1616460191 is about 40205.2259165398. The cubic root of 1616460191 is about 1173.6042436192.

The spelling of 1616460191 in words is "one billion, six hundred sixteen million, four hundred sixty thousand, one hundred ninety-one".