1651080156 has 96 divisors (see below), whose sum is σ = 4369413888. Its totient is φ = 480821760.

The previous prime is 1651080071. The next prime is 1651080157. The reversal of 1651080156 is 6510801561.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1651080157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 403336 + ... + 407408.

It is an arithmetic number, because the mean of its divisors is an integer number (45514728).

Almost surely, 2^1651080156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1651080156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2184706944).

1651080156 is an abundant number, since it is smaller than the sum of its proper divisors (2718333732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1651080156 is a wasteful number, since it uses less digits than its factorization.

1651080156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211 (or 4209 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 1651080156 is about 40633.4856491539. The cubic root of 1651080156 is about 1181.9235494428.

The spelling of 1651080156 in words is "one billion, six hundred fifty-one million, eighty thousand, one hundred fifty-six".