1601420955 has 16 divisors (see below), whose sum is σ = 2563240704. Its totient is φ = 853768800.

The previous prime is 1601420941. The next prime is 1601420959. The reversal of 1601420955 is 5590241061.

It is not a de Polignac number, because 1601420955 - 2⁵ = 1601420923 is a prime.

It is a super-2 number, since 2×1601420955² = 5129098150226224050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1601420959) 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, 24042 + ... + 61488.

It is an arithmetic number, because the mean of its divisors is an integer number (160202544).

Almost surely, 2^1601420955 is an apocalyptic number.

1601420955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1601420955 is a deficient number, since it is larger than the sum of its proper divisors (961819749).

1601420955 is a wasteful number, since it uses less digits than its factorization.

1601420955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40306.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 1601420955 is about 40017.7579956699. The cubic root of 1601420955 is about 1169.9532343058.

The spelling of 1601420955 in words is "one billion, six hundred one million, four hundred twenty thousand, nine hundred fifty-five".