1606146651 has 28 divisors (see below), whose sum is σ = 2459407392. Its totient is φ = 1047959856.

The previous prime is 1606146629. The next prime is 1606146677. The reversal of 1606146651 is 1566416061.

It is a happy number.

1606146651 is a `hidden beast` number, since 1 + 606 + 1 + 46 + 6 + 5 + 1 = 666.

It is not a de Polignac number, because 1606146651 - 2¹⁰ = 1606145627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1606146601) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 10825 + ... + 57701.

Almost surely, 2^1606146651 is an apocalyptic number.

1606146651 is a deficient number, since it is larger than the sum of its proper divisors (853260741).

1606146651 is an frugal number, since it uses more digits than its factorization.

1606146651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46942 (or 46927 counting only the distinct ones).

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

The square root of 1606146651 is about 40076.7594872639. The cubic root of 1606146651 is about 1171.1029244760.

The spelling of 1606146651 in words is "one billion, six hundred six million, one hundred forty-six thousand, six hundred fifty-one".