1651601005 has 16 divisors (see below), whose sum is σ = 2049001344. Its totient is φ = 1277035200.

The previous prime is 1651600967. The next prime is 1651601033. The reversal of 1651601005 is 5001061561.

It is not a de Polignac number, because 1651601005 - 2¹¹ = 1651598957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1627 + ... + 57496.

It is an arithmetic number, because the mean of its divisors is an integer number (128062584).

Almost surely, 2^1651601005 is an apocalyptic number.

It is an amenable number.

1651601005 is a deficient number, since it is larger than the sum of its proper divisors (397400339).

1651601005 is a wasteful number, since it uses less digits than its factorization.

1651601005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59316.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1651601005 is about 40639.8942542916. The cubic root of 1651601005 is about 1182.0478193993.

Adding to 1651601005 its reverse (5001061561), we get a palindrome (6652662566).

The spelling of 1651601005 in words is "one billion, six hundred fifty-one million, six hundred one thousand, five".