1020154510445 has 24 divisors (see below), whose sum is σ = 1499002552800. Its totient is φ = 662716912032.

The previous prime is 1020154510409. The next prime is 1020154510447. The reversal of 1020154510445 is 5440154510201.

It is a happy number.

It is not a de Polignac number, because 1020154510445 - 2⁸ = 1020154510189 is a prime.

It is a super-2 number, since 2×1020154510445² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020154510447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109571555 + ... + 109580864.

It is an arithmetic number, because the mean of its divisors is an integer number (62458439700).

Almost surely, 2^{1020154510445} is an apocalyptic number.

It is an amenable number.

1020154510445 is a deficient number, since it is larger than the sum of its proper divisors (478848042355).

1020154510445 is a wasteful number, since it uses less digits than its factorization.

1020154510445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219152457 (or 219152450 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 1020154510445 in words is "one trillion, twenty billion, one hundred fifty-four million, five hundred ten thousand, four hundred forty-five".