1606610451 has 8 divisors (see below), whose sum is σ = 2153021904. Its totient is φ = 1065636320.

The previous prime is 1606610441. The next prime is 1606610477. The reversal of 1606610451 is 1540166061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1606610451 - 2⁷ = 1606610323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1606610441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358640 + ... + 1359821.

It is an arithmetic number, because the mean of its divisors is an integer number (269127738).

Almost surely, 2^1606610451 is an apocalyptic number.

1606610451 is a deficient number, since it is larger than the sum of its proper divisors (546411453).

1606610451 is a wasteful number, since it uses less digits than its factorization.

1606610451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718661.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1606610451 is about 40082.5454655764. The cubic root of 1606610451 is about 1171.2156383976.

It can be divided in two parts, 1606610 and 451, that added together give a palindrome (1607061).

The spelling of 1606610451 in words is "one billion, six hundred six million, six hundred ten thousand, four hundred fifty-one".