1560990651 has 16 divisors (see below), whose sum is σ = 2273419008. Its totient is φ = 944852000.

The previous prime is 1560990631. The next prime is 1560990659.

1560990651 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 1560990651 - 2¹⁰ = 1560989627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1560990659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3375 + ... + 55976.

It is an arithmetic number, because the mean of its divisors is an integer number (142088688).

Almost surely, 2^1560990651 is an apocalyptic number.

1560990651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1560990651 is a deficient number, since it is larger than the sum of its proper divisors (712428357).

1560990651 is a wasteful number, since it uses less digits than its factorization.

1560990651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60162.

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 1560990651 is about 39509.3742167603. The cubic root of 1560990651 is about 1160.0234465633.

The spelling of 1560990651 in words is "one billion, five hundred sixty million, nine hundred ninety thousand, six hundred fifty-one".