1601055951 has 8 divisors (see below), whose sum is σ = 2328808704. Its totient is φ = 970336920.

The previous prime is 1601055947. The next prime is 1601055961. The reversal of 1601055951 is 1595501061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1601055951 - 2² = 1601055947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 48516847 = 1601055951 / (1 + 6 + 0 + 1 + 0 + 5 + 5 + 9 + 5 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601055901) 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, 24258391 + ... + 24258456.

It is an arithmetic number, because the mean of its divisors is an integer number (291101088).

Almost surely, 2^1601055951 is an apocalyptic number.

1601055951 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1601055951 is a deficient number, since it is larger than the sum of its proper divisors (727752753).

1601055951 is a wasteful number, since it uses less digits than its factorization.

1601055951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48516861.

The product of its (nonzero) digits is 6750, while the sum is 33.

The square root of 1601055951 is about 40013.1972104205. The cubic root of 1601055951 is about 1169.8643403234.

The spelling of 1601055951 in words is "one billion, six hundred one million, fifty-five thousand, nine hundred fifty-one".