1651000061 has 8 divisors (see below), whose sum is σ = 1671848640. Its totient is φ = 1630174432.

The previous prime is 1651000037. The next prime is 1651000103. The reversal of 1651000061 is 1600001561.

It is a happy number.

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 1651000061 - 2²² = 1646805757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1650999997 and 1651000042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1651008061) 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, 174080 + ... + 183318.

It is an arithmetic number, because the mean of its divisors is an integer number (208981080).

Almost surely, 2^1651000061 is an apocalyptic number.

It is an amenable number.

1651000061 is a deficient number, since it is larger than the sum of its proper divisors (20848579).

1651000061 is an equidigital number, since it uses as much as digits as its factorization.

1651000061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11475.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1651000061 is about 40632.5000584507. The cubic root of 1651000061 is about 1181.9044371671.

The spelling of 1651000061 in words is "one billion, six hundred fifty-one million, sixty-one", and thus it is an aban number.