1955946414021 has 16 divisors (see below), whose sum is σ = 2763662514624. Its totient is φ = 1226226539264.

The previous prime is 1955946414011. The next prime is 1955946414031. The reversal of 1955946414021 is 1204146495591.

It is an interprime number because it is at equal distance from previous prime (1955946414011) and next prime (1955946414031).

It is a cyclic number.

It is not a de Polignac number, because 1955946414021 - 2¹⁰ = 1955946412997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955946414011) 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, 16094430 + ... + 16215503.

It is an arithmetic number, because the mean of its divisors is an integer number (172728907164).

Almost surely, 2^{1955946414021} is an apocalyptic number.

It is an amenable number.

1955946414021 is a deficient number, since it is larger than the sum of its proper divisors (807716100603).

1955946414021 is a wasteful number, since it uses less digits than its factorization.

1955946414021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32311140.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 1955946414021 in words is "one trillion, nine hundred fifty-five billion, nine hundred forty-six million, four hundred fourteen thousand, twenty-one".