1620456351241 has 32 divisors (see below), whose sum is σ = 2097007976448. Its totient is φ = 1217013145920.

The previous prime is 1620456351223. The next prime is 1620456351307. The reversal of 1620456351241 is 1421536540261.

It is not a de Polignac number, because 1620456351241 - 2⁹ = 1620456350729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1620456351194 and 1620456351203.

It is not an unprimeable number, because it can be changed into a prime (1620456351221) 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, 2680881 + ... + 3229246.

It is an arithmetic number, because the mean of its divisors is an integer number (65531499264).

Almost surely, 2^{1620456351241} is an apocalyptic number.

It is an amenable number.

1620456351241 is a deficient number, since it is larger than the sum of its proper divisors (476551625207).

1620456351241 is a wasteful number, since it uses less digits than its factorization.

1620456351241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5910301.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 1620456351241 in words is "one trillion, six hundred twenty billion, four hundred fifty-six million, three hundred fifty-one thousand, two hundred forty-one".